Optimisation of Resistive Wall Mode Control in Reversed Field Pinches
Journal article, 2004

Feedback stabilization of magnetohydrodynamic modes in reversed field pinches is analysed for a set of discrete coils driven by voltage control. It is found that the resistive wall mode can be stabilized with a very simple controller structure and with acceptable voltages in the coils. These results are obtained by using a sufficient number of active coils and either sensors for the radial field or sensors for the poloidal or toroidal field placed inside the resistive wall. The result is robust with respect to variations in the plasma equilibrium. Poloidal and toroidal sensors placed outside the wall require a more complicated controller and very high voltages, and do not allow as good control performance as internal sensors.

Feedback Control

Reversed Field Pinch

Resistive Wall Mode

Author

D. Gregoratto

R. Paccagnella

Yueqiang Liu

Chalmers, Department of Electromagnetics, Computational Electromagnetics

Nuclear Fusion

0029-5515 (ISSN)

Vol. 44 1-

Subject Categories

Physical Sciences

More information

Created

10/6/2017